CN101585446A - Transmission control method of reverse start of multi-process belt conveyor system - Google Patents
Transmission control method of reverse start of multi-process belt conveyor system Download PDFInfo
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- CN101585446A CN101585446A CNA2009100745047A CN200910074504A CN101585446A CN 101585446 A CN101585446 A CN 101585446A CN A2009100745047 A CNA2009100745047 A CN A2009100745047A CN 200910074504 A CN200910074504 A CN 200910074504A CN 101585446 A CN101585446 A CN 101585446A
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Abstract
The present invention discloses a transmission control method of reverse start of multi-process belt conveyor system, which comprises the following steps: firstly starting the operation of an upstream feeder; after the upstream feeder receives a starting signal, starting feeding by the feeder, and simultaneously after a PLC system detects a feeding signal of the feeder, timing according to a starting interval timer of the upstream conveyor, when a preset value is obtained, transmitting a downstream conveyor operating instruction by the PLC system for connecting the downstream conveyor for starting operation; after the operation of the downstream conveyor and a preset value is reached, starting an adjacent downstream conveyor by the PLC system, and so forth; after the operation of the most downstream conveyor, operating the timer for timing, and after finishing, transmitting an operation instruction of the downstream unloading machine by the PLC system, the downstream unloading machine operates and all conveyors in the process is fully actuated. Therefore, through a mode that the upstream to the downstream of the conveyors are sequentially started reversely, the dead time of the conveyor transmission system can be greatly reduced, and the electrical energy is saved.
Description
Technical field
The present invention relates to the transfer control method of diffusing material reverse start of multi-process belt conveyor system such as harbour, factory, mine, avoided the material times such as zero load of belt feeders at different levels, energy savings.
Background technology
The traditional handicraft of flow startup is forward to start in the diffusing material transportation, promptly starts downstream feeding equipment belt feeder earlier, and the edge to each switching belt feeder of sequence starting of upstream, is restarted upstream feeding equipment belt feeder from the downstream at last then.When having only the condition of the whole runnings of belt feeders all in satisfying flow process, just begin to carry out the feed operation.This transmission mode can prevent that belt switching place from material taking place stop up, so continued to use by each transportation loading and unloading industry always.
But in forward startup method of tradition, must each bar belt feeder all start finish after, upstream feeding device belt feeder can material loading, so each belt feeder all has certain material times such as zero load, thereby the waste electric energy.If belt feeder is long more in the flow process, switching belt quantity is many more, and the dry run time of each downstream belt feeder is just long more, and the energy loss that causes is also just big more.
With the Qinhuangdao harbour affairs joint-stock company flow process of unloading is example: unload totally 48 of flow processs of Qin's port ancillary firm belong to the belt conveyor system of multipaths.The belt feeder quantity of wall scroll flow process is the 6-9 bar, 4.5 kilometers of single process belt feeder total length average out to.According to traditional flow process, finish that the material loading process that the most forward starts of short flow process also needs nearly 20 minutes clock times, because the unloaded waits for too long of belt feeder, power consumption is excessive, has increased the productive costs of enterprise.
Real data table by Qin Gang company car unloading operation is illustrated:
In 20 minutes that start, each bar belt dry run time adds up to and surpasses 40 minutes as can be seen from the above table, and energy consumption is huge.
Summary of the invention
In view of above-mentioned present situation, the present invention has created the reverse start pattern of flow process, a kind of transfer control method of reverse start of multi-process belt conveyor system is provided, upstream to downstream by transport tape is the mode of reverse start successively, can reduce greatly the dead time of transport tape delivery system, thereby realize energy-conservation.
Method step of the present invention is:
1, determines the length of transmission belt machine in the flow process;
2, calculate reverse start pitch time T between each the superior and the subordinate's transport tape;
3, with in the step 2 between the superior and the subordinate's transport tape reverse start pitch time T value store in the preset value of each corresponding time meter in the PLC program, each time meter picks up counting after upstream belt feeder operation;
4, after the PLC program is judged upstream belt feeder and the equal trouble free of all downstream belt feeders, the PLC system sends enabled instruction to upstream belt feeder MCC cabinet, and the upstream belt feeder begins reverse start;
5, then the PLC program and sends the run memory set of upstream belt feeder actuation signal and begins to start blowing to the upstream feeder;
6, after the PLC program detected feeder blowing signal, the startup pitch time time meter of upstream belt feeder picked up counting, and when time meter reached preset value, the PLC program was sent downstream belt feeder operating instruction, and the downstream belt feeder brings into operation;
7, in the PLC program startup pitch time time meter of downstream belt feeder is picked up counting, time meter starts adjacent downstream belt feeder after arriving preset value, analogizes each bar belt feeder of startup in proper order;
8, in the PLC program time of run time meter of belt feeder is picked up counting, after timing finished, the PLC system sent the operating instruction of downstream unloader, and the downstream unloader brings into operation, and all belt feeders all start in the flow process.
According to such scheme, the safety arrestment of the contrary last transport tape of run up time+T that opens next transport tape of pitch time T=T time+T safe clearance.According to the length and the running velocity of transport tape, accurately calculate the concrete time of materials flow to the downstream belt feeder, guarantee that the downstream belt feeder must start before materials flow arrives.
According to such scheme, in the PLC program, set up all belt feeder faulty condition distributors of upstream belt feeder and downstream, when arbitrary belt feeder and corresponding downstream belt feeder et out of order, the state of distributor changes, and the PLC program does not allow to send enabled instruction to fault belt feeder and upstream belt feeder.
According to such scheme, the startup pitch time time meter of each bar belt feeder and the run signal of downstream belt feeder are carried out logic determines, the upstream belt feeder starts that the downstream belt feeder does not have operation, the startup of PLC program control by-pass flow process in the specific time of pitch time time meter after then.
According to such scheme, the processing of having no progeny in the related flow process is unloaded contrary opening in the process, intermediate belt machine off-duty causes flow startup to interrupt, the PLC program will be judged the materials flow head position according to the operation cumulative hours of belt feeder, according to its position, judge whether that the downstream belt still possesses time that contrary entry condition promptly arrives next transit point during greater than time T, reverse start then, the upstream belt keeps forward starting.Guarantee that with this materials flow transit point does not take place stops up.
In sum, the transfer control method of reverse start of multi-process belt conveyor system of the present invention, have and utilize the PLC program to judge whether flow process still possesses the condition of reverse start, as conditions being possessed, then judging the last time according to belt feeder faulty condition distributor is which bar belt feeder hinders for some reason and is not activated, and this belt feeder sent actuation signal, if this belt feeder starts successfully, and after the PLC system detects belt feeder contactless switch operation feedback signal, the startup pitch time time meter of this belt feeder picks up counting, and each belt feeder of the downstream of this belt feeder is the property advanced reverse start step successively.Meanwhile, the PLC system sends actuation signal to the upstream belt feeder that connects this belt feeder, and each upstream belt feeder changes traditional forward startup over to.Therefore, if the belt feeder quantity in the flow process is many more, then switching process is long more required dead time, and the energy-conservation effect of reverse start is just obvious more.
Description of drawings
Fig. 1 is the FB(flow block) of reverse start of the present invention;
Fig. 2 is the embodiments of the invention reference view.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing embodiment.
See that accompanying drawing 1 has provided the block diagram of the transfer control method of multi-process belt conveyor system, the setting up procedure of its reverse start control program:
1) at first start upstream belt feeder operation: after the PLC program was judged upstream belt feeder and the equal trouble free of its all downstream belt feeders, the PLC system sent enabled instruction to upstream belt feeder MCC cabinet, and the upstream belt feeder brings into operation.After the operation of upstream belt feeder, the PLC program is the run memory set of this belt feeder if its operation feedback signal is correct, and sends actuation signal to the upstream feeder.
2) the upstream feeder is to upstream belt feeder material loading: after the upstream feeder received actuation signal, feeder began to start blowing, and the PLC program is with the set of feeder material loading memory device simultaneously.
3) after the PLC system detects feeder blowing signal, the startup pitch time time meter of the upstream belt feeder in the PLC program picks up counting, when time meter reached preset value, the PLC system sent downstream belt feeder operating instruction, and the belt feeder that connects its downstream brings into operation.
4) after the operation of this downstream belt feeder, startup pitch time time meter that mutually should belt feeder in the PLC program picks up counting, and after time meter arrived preset value, PLC system start-up adjacent downstream belt feeder was analogized in proper order and started each bar belt feeder.
5) after the belt feeder operation in downstream, the time of run time meter of this belt feeder picks up counting in the PLC program, and after timing finished, the PLC system sent the operating instruction of downstream unloader, and the downstream unloader brings into operation, and all belt feeders all start in the flow process.
Accompanying drawing 2 has provided the embodiments of the invention reference view.In the present embodiment, wherein:
1, CD6,7,8 is feeder (tipper) code name, and the materials flow on the belt is from tipper bottom feeder;
2, S8～S13 is unloader (stocker) code name, will be discharged to from the materials flow of belt feeder on the place;
3, BF* is a tipper feeder below belt feeder code name, is the upstream belt feeder of belt feeder system;
4, BD* is the belt feeder code name that links to each other with stocker, is the downstream belt feeder of belt feeder system;
5, BH*-* is a relay switching belt feeder code name, is used for the materials flow on the BF belt is delivered to the stockyard;
6, T5-* is the transferring tower of upstream and downstream belt feeder, and the upstream belt feeder injects the downstream belt feeder with materials flow through the hopper of transferring tower.
In the present embodiment, turning line transport tape arranges that the feeder of upstream belt feeder is three tipper CD6, CD7, CD8, pairing upstream belt feeder is BF6, BF7, BF8, its adjacent downstream belt feeder is respectively BH6-6, BH7-6, BH8-6, down be BH6-5, BH7-5, BH8-5 again, the rest may be inferred until each bar BD belt feeder, and each bar upstream and downstream belt feeder connects by the transit point in T-7 to the T-15 transferring tower; The cooresponding belt unloading device of downstream belt feeder is a stocker.
1,, determines that the length of transmission belt machine is fit to the startup of adverse current journey at first according to above-mentioned operating mode;
According to implementing reverse start control technological condition, after the length of determining the most of transmission belt machines in the flow process can guarantee that belt feeder starts material loading, materials flow can not arrive the transit point of close with it downstream belt feeder immediately.If also promptly the downstream belt feeder starts failure, materials flow can not enter adjacent blanking point owing to the operation of upstream belt feeder, results in blockage.
2, then according to the length and the running velocity of transport tape, calculate the startup pitch time time meter T of each belt feeder: the safety arrestment of the contrary last transport tape of run up time+T that opens next transport tape of pitch time T=T time+T safe clearance.
According to the length and the running velocity of transport tape, accurately calculate the concrete time of materials flow to the downstream belt feeder, guarantee that the downstream belt feeder must start before materials flow arrives.
1) upstream belt feeder is the BF belt feeder, and the startup pitch time time meter TBF of BF belt feeder is calculated as follows:
TBF=TBF belt feeder material loading flow to reach transit point time-the T lead,
The safety arrestment of T lead=TBF time+TBH-6 run up time+T safe clearance time wherein
Because of BF belt feeder length is 370 meters, the belt feeder running velocity is 5 meter per seconds, then the materials flow on the BF belt feeder arrive time T BF belt feeder material loading with the transit point of its downstream belt feeder flow to reach transit point time=370/5=74 second; Safety arrestment time=10 of TBF second; TBH-6 run up time=35 second run up time of its downstream (BH-6) belt feeder; T safe clearance time=9 second; The safety arrestment of T lead=TBF time+TBH-6 run up time+T safe clearance time=54 second then; Then TBF=TBF belt feeder material loading flow to reach transit point time-T lead=74-54=20 second, that is: the PLC program the BF belt feeder start finish 20 seconds after, send the startup actuation signal of its downstream (BH-6) belt feeder.
2) in like manner, start the BH-5 belt feeder after BH-6 started 11 seconds, the 52 seconds detection BH-5 run signal of delay time are moved 9 seconds and promptly think BH-6 material loading; Start the BH-4 belt feeder after BH-5 starts 128 seconds, delay time and detected the BH-4 run signal in 170 seconds and move 40 seconds and promptly think BH-5 material loading; BH-4 starts the BD belt feeder after starting 187 seconds simultaneously, and the 229 seconds detection BD run signal of delay time are moved 95 seconds and promptly think BH-4 material loading; The BH-4 startup sends the outstanding skin enabled instruction of stocker simultaneously, promptly detects the outstanding skin run signal of stocker after the BD operation, receives the then whole flow process reverse starts of outstanding skin run signal and finishes.
3, the concrete implementation step of adverse current journey startup
1) at first starts upstream (BF) belt feeder operation
The operator is by pressing the button or input startup flow process instruction on man-machine interface, after the PLC controller receives instruction, when judging the equal trouble free of all belt feeders in BF belt feeder and its downstream, the PLC system sends the movement command signal that starts the upstream belt feeder, the action of control belt feeder drive motor MCC cabinet, drive motor begins to drive the operation of BF belt feeder.
2) the upstream feeder is to upstream (BF) belt feeder material loading
The PLC system sends actuation signal to upstream feeder (CD tipper) after detecting BF belt feeder drive motor operation feedback signal, and the CD tipper starts, and gives BF belt feeder material loading.
After the PLC program detected the run signal of CD tipper, the startup pitch time time meter of BF belt feeder picked up counting, and the startup of its downstream (BH-6) belt feeder comes to the period of reckoning time backwards.
3) when the startup pitch time time meter of BF belt feeder reaches preset value, the PLC system sends its downstream (BH-6) belt feeder actuation signal, gives corresponding M CC cabinet, the entry into service of BH-6 belt feeder.According to the calculating of TBF value in the step 2 materials flow on the BF belt feeder at this moment near with the transit point of BH-6 belt feeder.
Simultaneously the PLC program detects the clocking capability that cuts off the startup pitch time time meter of BF belt feeder after the operation feedback signal of BH-6 belt feeder.
4) start each bar belt feeder by that analogy successively.
5) downstream (BD) belt feeder starts in flow process, and after the PLC program detects the operation feedback signal of BD belt feeder, the startup pitch time time meter of BD belt feeder picks up counting, when this time meter reaches preset value, the PLC system sends actuation signal to downstream unloader (stocker), the material that stocker begins to start on the belt feeder unloads, and the reverse start of whole flow process is finished.
4, the implementation step of having no progeny and restarting in the barrier for some reason
Can't start owing to disorderly closedown as a certain belt feeder in the adverse current journey start-up course; this belt feeder contactless switch operation feedback signal is not received in program by the PLC system in the default time; the PLC program produces the breakdown signal of this belt feeder so, and cancels the operating instruction of all upstream equipments of this belt feeder.
Behind trouble removal, need to restart flow process, then PLC system implementation following steps:
The PLC program judges at first whether flow process still possesses the condition of reverse start, as conditions being possessed, then judging the last time according to belt feeder faulty condition distributor is which bar belt feeder hinders for some reason and is not activated, and this belt feeder sent actuation signal, if this belt feeder starts successfully, and after the PLC system detects belt feeder contactless switch operation feedback signal, the startup pitch time time meter of this belt feeder picks up counting, and each belt feeder of the downstream of this belt feeder is the property advanced reverse start step successively.Meanwhile, the PLC system sends actuation signal to the upstream belt feeder that connects this belt feeder, and each upstream belt feeder changes traditional forward setting up procedure over to.
If the belt feeder quantity in the flow process is many more, then switching process is long more required dead time, and the energy-conservation effect of reverse start is just obvious more.
Be the effect that proves absolutely that the present invention has, see Qin Gang company the adverse current journey of short flow process start actual power savings table:
| The belt feeder title | Along opening the no-load run time (second) | Contrary opening the no-load run time (second) | Contrary opening shortened dead time (second) | Belt feeder open circuit loss (KW) | The electric energy that one-shot is saved (KWH) |
| ST | 1052 | 337 | 715 | 118 | 23.5 |
| BD | 772 | 107 | 665 | 400 | 73.89 |
| BH*_4 | 472 | 77 | 395 | 450 | 49.38 |
| BH*_5 | 238 | 53 | 185 | 450 | 23.13 |
| BH*_6 | 134 | 39 | 95 | 210 | 5.54 |
| BF | 10 | 10 | 0 | 500 | 0 |
| Add up to dead time | 2678 | 623 | 2055 | Add up to saves energy: (KWH) | 175.44 |
As seen in the shortest flow process, replace tradition forward to start in the reverse start mode with saves energy 175KWH at every turn.Each flow process economize on electricity average out to 232KWH of actual measurement in the actual job process.With 6,000 ten thousand tons of calculating of five phase of coal annual handling capacity, the flow startup number of times is about 8500 times, and then annual saves energy is about 2,000,000 degree, and economic benefit is huge.
Claims (5)
1, the transfer control method of reverse start of multi-process belt conveyor system, the setting up procedure of its reverse start control program comprises:
1) determines the length of transmission belt machine in the flow process;
2) calculate reverse start pitch time T between each the superior and the subordinate's transport tape;
3) with in the step 2 between the superior and the subordinate's transport tape reverse start pitch time T value store in the preset value of each corresponding time meter in the PLC program, each time meter picks up counting after upstream belt feeder operation;
4) after the PLC program is judged upstream belt feeder and the equal trouble free of all downstream belt feeders, the PLC system sends enabled instruction to upstream belt feeder MCC cabinet, and the upstream belt feeder begins reverse start;
5) then the PLC program and sends the run memory set of upstream belt feeder actuation signal and begins to start blowing to the upstream feeder;
6) after the PLC program detected feeder blowing signal, the startup pitch time time meter of upstream belt feeder picked up counting, and when time meter reached preset value, the PLC program was sent downstream belt feeder operating instruction, and the downstream belt feeder brings into operation;
7) in the PLC program startup pitch time time meter of downstream belt feeder is picked up counting, time meter starts adjacent downstream belt feeder after arriving preset value, analogizes each bar belt feeder of startup in proper order;
8) in the PLC program time of run time meter of belt feeder is picked up counting, after timing finished, the PLC system sent the operating instruction of downstream unloader, and the downstream unloader brings into operation, and all belt feeders all start in the flow process.
2, by the transfer control method of the described reverse start of multi-process belt conveyor system of claim 1, it is characterized in that the safety arrestment of the contrary last transport tape of run up time+T that opens next transport tape of pitch time T=T time+T safe clearance.
3, press the transfer control method of the described reverse start of multi-process belt conveyor system of claim 1, it is characterized in that, in the PLC program, set up all belt feeder faulty condition distributors of upstream belt feeder and downstream, when arbitrary belt feeder and corresponding downstream belt feeder et out of order, the state of distributor changes, and the PLC program does not allow to send enabled instruction to fault belt feeder and upstream belt feeder;
4, press the transfer control method of the described reverse start of multi-process belt conveyor system of claim 1, it is characterized in that, the startup pitch time time meter of each bar belt feeder and the run signal of downstream belt feeder are carried out logic determines, the upstream belt feeder starts that the downstream belt feeder does not have operation, the startup of PLC program control by-pass flow process in the specific time of pitch time time meter after then;
5, press the transfer control method of the described reverse start of multi-process belt conveyor system of claim 1, it is characterized in that, in unloaded contrary start-up course, intermediate belt machine off-duty interrupts, the PLC program will be judged the materials flow head position according to the operation cumulative hours of belt feeder, judge whether that the downstream belt still possesses time that contrary entry condition promptly arrives next transit point during greater than time T, reverse start then, the upstream belt keeps forward starting.
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| CN102673985A (en) * | 2012-05-22 | 2012-09-19 | 山东省科学院海洋仪器仪表研究所 | Flow design method for multi-belt system |
| CN102745482A (en) * | 2012-07-18 | 2012-10-24 | 金红叶纸业集团有限公司 | Conveyer device and conveying method thereof |
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| CN103086137A (en) * | 2011-11-02 | 2013-05-08 | 上海宝信软件股份有限公司 | Belt conveyor control module |
| CN103449138A (en) * | 2013-09-04 | 2013-12-18 | 中国神华能源股份有限公司 | Downstream coal flow time delay sequence start-up method for centralized control conveyors |
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| CN102673985B (en) * | 2012-05-22 | 2014-10-29 | 山东省科学院海洋仪器仪表研究所 | Flow design method for multi-belt system |
| CN102673985A (en) * | 2012-05-22 | 2012-09-19 | 山东省科学院海洋仪器仪表研究所 | Flow design method for multi-belt system |
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| CN110465933A (en) * | 2018-05-09 | 2019-11-19 | 阿里巴巴集团控股有限公司 | A kind of control method, device, equipment and system |
| CN110465933B (en) * | 2018-05-09 | 2023-08-22 | 阿里巴巴集团控股有限公司 | Control method, device, equipment and system |
| CN113460621A (en) * | 2021-06-10 | 2021-10-01 | 国能黄骅港务有限责任公司 | Coal pile turning system, control method and device thereof, and computer equipment |
| CN113460621B (en) * | 2021-06-10 | 2022-06-10 | 国能黄骅港务有限责任公司 | Coal pile turning system, control method and device thereof, and computer equipment |
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